[issue20369] concurrent.futures.wait() blocks forever when given duplicate Futures

[Irit Katriel]

Irit Katriel <iritkatriel at gmail.com> added the comment:

Reproduced on 3.11.

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components: +Library (Lib)
nosy: +iritkatriel
type:  -> behavior
versions: +Python 3.10, Python 3.11, Python 3.9 -Python 3.3, Python 3.4

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue20369>
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